I need some help, I was able to setup 2 of my hashing machines yesterday easily enough but I am unable to configure vertminer correctly to utilise both my 6870's. Vertminer loads as if it is going to work, it appears ok, but I am unable to hit a hash rate above 12 on either card. I have set this up using vertminer for a single ati card and using cuda miner for a single ndivia card.

here are my batch file settings. please help, is there something else i should be changing?

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
COLOR 0A
vertminer.exe --scrypt-vert -o stratum+tcp://rt2-stratum.hashfever.com:3274 -u drsquirt.1 -p 1234 --intensity 15 --gpu-engine 1000 --gpu-memclock 900 --gpu-fan 100 --thread-concurrency 4720 -d 0,1 -w 256